tdf#138519 use gtk_adjustment_set_value instead of gtk_spin_button_set_value

for FormattedSpinButton because the latter doesn't change the value if
the new value is less than an EPSILON diff of 1e-10 from the old value

Change-Id: I410ceec28e1855e53de8c2982e540c612578bf54
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/121419
Tested-by: Jenkins
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
diff --git a/vcl/unx/gtk3/gtkinst.cxx b/vcl/unx/gtk3/gtkinst.cxx
index 4a60011..c4a516c 100644
--- a/vcl/unx/gtk3/gtkinst.cxx
+++ b/vcl/unx/gtk3/gtkinst.cxx
@@ -15828,7 +15828,10 @@ public:
            return;
        m_bSyncingValue = true;
        disable_notify_events();
        gtk_spin_button_set_value(m_pButton, m_pFormatter->GetValue());
        // tdf#138519 use gtk_adjustment_set_value instead of gtk_spin_button_set_value because the
        // latter doesn't change the value if the new value is less than an EPSILON diff of 1e-10
        // from the old value
        gtk_adjustment_set_value(gtk_spin_button_get_adjustment(m_pButton), m_pFormatter->GetValue());
        enable_notify_events();
        m_bSyncingValue = false;
    }